Science

Sunday, 16 November 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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NASA
In the case of finding life on other planets, NASA established an Office of Planetary Protection.
Moon
The moon was formed about 4527 billion years ago, or about 30 to 50 million years after the formation of the solar system.
Tears
Tears are primarily made of water.
They also consist of fatty oils, salt, and proteins.
Cosmos
There are about 200 trillion galaxies in the universe.
Each has a different composition and size. The largest galaxies can span up to 2 million light years.
Moon
The Moon always faces the Earth with the same side.
This is because our natural satellite is in synchronous rotation with the Earth. A long time ago, th ...
Moon
The Moon is so far the only celestial body on which humans have landed.
The first successful landing on the Moon took place on July 20, 1969, at 21:17 CET. Shortly after la ...
Mushrooms
They can be very expensive.
The most valuable mushrooms are the white truffles. For a 1.5 kg specimen was paid 330,000$.
Titan
Its surface is highly geologically diverse.
It is covered in lighter and darker areas: seas, lakes, bays, islands, rivers, canals, mountain ridges, valleys, fjords, and dunes.
Titan
The largest crater on Titan’s surface in Menrva.
Its diameter is 392 kilometers, and its depth is 2.8 kilometers. It is located 20.1 degrees north of ...
Snow
Snow is formed from the finest droplets of over-cooled water in clouds.
These droplets attach themselves to nuclei of crystallization, which can be, for example, dust parti ...